US2018343098A1PendingUtilityA1

Techniques and apparatuses for controlling negative acknowledgement (nack) transmissions for video communications

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Assignee: QUALCOMM INCPriority: May 24, 2017Filed: Feb 14, 2018Published: Nov 29, 2018
Est. expiryMay 24, 2037(~10.8 yrs left)· nominal 20-yr term from priority
Inventors:Neha GoelSrinivasan BalasubramanianTien-Hsin LeeSanjeev MittalRama Krishna NunnaVikram Singh
H04W 72/23H04W 72/21H04L 1/205H04N 21/6131H04L 5/0055H04N 21/615H04L 1/1812H04N 21/64322H04W 76/27H04L 5/0007H04W 72/0413H04N 21/43637
39
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Claims

Abstract

Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determine that a video frame was not properly received by the wireless communication device. The wireless communication device may determine whether a reference frame is stored in a buffer of the wireless communication device based at least in part on determining that the video frame was not properly received. The wireless communication device may selectively transmit a negative acknowledgement (NACK) indication based at least in part on determining whether the reference frame is stored in the buffer. Numerous other aspects are provided.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method of wireless communication, comprising:
 determining, by a wireless communication device, that a video frame was not properly received by the wireless communication device;   determining, by the wireless communication device, whether a reference frame is stored in a buffer of the wireless communication device based at least in part on determining that the video frame was not properly received; and   selectively transmitting, by the wireless communication device, a negative acknowledgement (NACK) indication based at least in part on determining whether the reference frame is stored in the buffer.   
     
     
         2 . The method of  claim 1 , wherein the buffer is a de-jitter buffer. 
     
     
         3 . The method of  claim 1 , wherein the wireless communication device is configured to prevent at least one of generation or transmission of the NACK indication when the reference frame is stored in the buffer. 
     
     
         4 . The method of  claim 1 , wherein the wireless communication device is configured to at least one of generate or transmit the NACK indication when the reference frame is not stored in the buffer. 
     
     
         5 . The method of  claim 1 , wherein the reference frame is used to decode subsequent packets associated with the video frame. 
     
     
         6 . The method of  claim 1 , wherein the reference frame is an instantaneous decoder refresh frame. 
     
     
         7 . The method of  claim 1 , wherein the reference frame is a long term reference frame. 
     
     
         8 . The method of  claim 1 , wherein the reference frame is a short term reference frame. 
     
     
         9 . The method of  claim 1 , wherein determining whether the reference frame is stored in the buffer is performed at an Internet Protocol Multimedia Subsystem (IMS) layer of the wireless communication device. 
     
     
         10 . A wireless communication device, comprising:
 a memory; and   one or more processors operatively coupled to the memory, the one or more processors configured to:
 determine that a video frame was not properly received by the wireless communication device; 
 determine whether a reference frame is stored in a buffer of the wireless communication device based at least in part on determining that the video frame was not properly received; and 
 selectively transmit a negative acknowledgement (NACK) indication based at least in part on determining whether the reference frame is stored in the buffer. 
   
     
     
         11 . The wireless communication device of  claim 10 , wherein the buffer is a de-jitter buffer. 
     
     
         12 . The wireless communication device of  claim 10 , wherein the wireless communication device is configured to at least one of prevent generation or transmission of the NACK indication when the reference frame is stored in the buffer. 
     
     
         13 . The wireless communication device of  claim 10 , wherein the wireless communication device is configured to at least one of generate or transmit the NACK indication when the reference frame is not stored in the buffer. 
     
     
         14 . The wireless communication device of  claim 10 , wherein the reference frame is used to decode subsequent packets associated with the video frame. 
     
     
         15 . The wireless communication device of  claim 10 , wherein the reference frame is an instantaneous decoder refresh frame. 
     
     
         16 . The wireless communication device of  claim 10 , wherein the reference frame is a long term reference frame. 
     
     
         17 . The wireless communication device of  claim 10 , wherein the reference frame is a short term reference frame. 
     
     
         18 . The wireless communication device of  claim 10 , wherein determining whether the reference frame is stored in the buffer is performed at an Internet Protocol Multimedia Subsystem (IMS) layer of the wireless communication device. 
     
     
         19 . A non-transitory computer-readable medium storing one or more instructions for wireless communication, comprising:
 one or more instructions that, when executed by one or more processors, cause the one or more processors to:
 determine that a video frame was not properly received by a wireless communication device; 
 determine whether a reference frame is stored in a buffer of the wireless communication device based at least in part on determining that the video frame was not properly received; and 
 selectively transmit a negative acknowledgement (NACK) indication based at least in part on determining whether the reference frame is stored in the buffer. 
   
     
     
         20 . The non-transitory computer-readable medium of  claim 19 , wherein the buffer is a de-jitter buffer. 
     
     
         21 . The non-transitory computer-readable medium of  claim 19 , further comprising at least one of:
 one or more instructions to at least one of prevent generation or transmission of the NACK indication when the reference frame is stored in the buffer, or   one or more instructions to at least one of generate or transmit the NACK indication when the reference frame is not stored in the buffer.   
     
     
         22 . The non-transitory computer-readable medium of  claim 19 , wherein the reference frame is used to decode subsequent packets associated with the video frame. 
     
     
         23 . The non-transitory computer-readable medium of  claim 19 , wherein the reference frame is at least one of:
 an instantaneous decoder refresh frame,   a long term reference frame, or   a short term reference frame.   
     
     
         24 . The non-transitory computer-readable medium of  claim 19 , further comprising one or more instructions to determine whether the reference frame is stored in the buffer at an Internet Protocol Multimedia Subsystem (IMS) layer of the wireless communication device. 
     
     
         25 . An apparatus for wireless communication, comprising:
 means for determining that a video frame was not properly received by the apparatus;   means for determining whether a reference frame is stored in a buffer of the apparatus based at least in part on determining that the video frame was not properly received; and   means for selectively transmitting a negative acknowledgement (NACK) indication based at least in part on determining whether the reference frame is stored in the buffer.   
     
     
         26 . The apparatus of  claim 25 , wherein the buffer is a de-jitter buffer. 
     
     
         27 . The apparatus of  claim 25 , wherein the apparatus includes at least one of:
 means for preventing generation or transmission of the NACK indication when the reference frame is stored in the buffer, or   means for generating and transmitting the NACK indication when the reference frame is not stored in the buffer.   
     
     
         28 . The apparatus of  claim 25 , wherein the reference frame is used to decode subsequent packets associated with the video frame. 
     
     
         29 . The apparatus of  claim 25 , wherein the reference frame is at least one of:
 an instantaneous decoder refresh frame,   a long term reference frame, or   a short term reference frame.   
     
     
         30 . The apparatus of  claim 25 , wherein the means for determining whether the reference frame is stored in the buffer is included in an Internet Protocol Multimedia Subsystem (IMS) layer of the apparatus.

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